Improvement in steam-cylinder lubricators



ZSheets- -SheetL L. l-'. SMITH. Steam-Cylinder Luhrioators. No .155,767.

Patented Oct. 6,1874.

ITNESSES um Attorneys 7 2 sheets Sh'eet 2- L. r. sun". Steam} 0 y'l i nd or "l. u b r i catn rs IINVENITOR Attorneys UN TED STATES LEVI F.SMITH, OF PHILADELPHIA, PENNSYLVANIA.

PATENT OFFICE.

IMPROVEMENT IN STEAM-CYLINDER LUBRICA TORS.

Specification forming part of Letters Patent No. 155,?67, dated October6, 1874 application filed September 12, 1874.

To all whom it may concern:

Be it known that I, LEVI F.'SMITH, of Philadelphia, in the county ofPhiladelphia and in the State of Pennsylvania, have invented certain newand useful Improvements in Steam- Oylinde'r Lubricators; and do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon, making a part of thisspecification.

The nature of my invention consists in certain improvements upon thesteam cylinder lubricators for which Letters Patent Nos. 107,826 and140,958 were granted to me September 27, 1870, and July 15, 1873,respectively, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure 1 is a side elevation, partially in section, of a steam-cylinderlubricator embodying my invention. Fig. 2 is an enlarged section of theglobe at the bottom of the oil-reservoir, with its valves. Figs. 3 and 4show the mode of fastening the cap at the top of the oil-reservoir.Figs. 5, 6, and 7 show the construction of the valve-chambers and valvesfor the gagetube outside of the oil-reservoir.

A represents the oil-reservoir, with the globe B screwed into itsbottom. This globe is prcF vided with two valves, 0 and G, andconstructed in the same manner as described in the Patent No. 140,958,above referred to, so as to admit of feeding the oil either by acondensing feed; or positive feed, as desired. The valve 0, which isused for the positive feed, is provided with a short stem or teat, a,which passes into and through the valve-opening,

and is beveled on one side, as shown at m, Fig. 2. The hand-wheel ofthis valve is graduated on its periphery, so as to set the valve to feedas manydropsperminute as may be desired.

It will readily be seen that if this valve were not provided with theteat a, the slightest movement of the valve would remove it from itsseat and admit oil all around it through the valve-opening, and hencethe graduations on the valve-wheel would have to.

' be so very small and close together that it would be almost impossibleto set the valve to feed the amount desired. By the addition, however,of the teat a, beveled on one side, the valve-opening is so slowlyenlarged that the graduations may be made at a comparatively greatdistance apart, and the valve can easily be set to feed any number ofdrops desired. In the top of the reservoirAis the aperture b, throughwhich the oil is admitted, and

around said aperture is formed a chamber, l), which acts as a funnel infilling the reservoir.

On the rim of this chamber are lugs cl cl, to

engage with corresponding lugs e e on theinside, at the bottom of thecap D, for hold ng the cap on the reservoir. In the cap D is ahorizontal plate or partition, f, in the center of which is an aperturefor the insertion of the lower end of the sleeve h, which screws throughthe top of the cap D, and is, at its upper end, provided with a handwheel, E. Through this sleeve it passes the valve-stem h, having a disk,70, and valve 2' at its lower end, between which is a circumferentialgroove, 2.

When the cap is put on, the sleeve h is screwed down, forcing the valvez'flrmly to its seat, and at the same time fastening the cap firmly. Incase of leakage by the wearing of the valve i or its seat, when there isno time to grind the valve down, a washer, an, of rubber,leather, softmetal, or other su table material, is placed in the circum ferentialgroove 2, between the valve t and disk 70, which will make the jointbetween said disk and top of reservoir perfectly steam-tight. On thesleeve h, below the wheel E, is placed a lever-nut, G, to lock the cap.This is, however, not necessary on stationary engines, only onlocomotives, where the jarring might otherwlse loosen the cap.

From the top of the oil-reservoir A a pipe, H, leads horizontallyoutward into a valve-v box, I, which is by a partition, a, divided intotwo chambers, n and M. The pipe leads into the chamber n and directlyoppositesaid pipe, on a line therewith, is a tube, 8, with a pet-cock,J, as shown in Fig. 1. In the partr tion nis a suitable opening,forminga communication between the chambers a a and said opening is closed byan ordinary globe-valve, 1 entering from the side of the valve-box I.From the bottom of the reservoir extends a pipe, H, leading horizontallyoutward into a valve-box, I, having an outlet, 8, and with or without apet-cock, J. Between the two valveboxes is inserted a glass tube, L,into which oil flows through the tubes and chambers from the reservoir,for the purpose of indicating the quantity of oil in the reservoir.

The object of thus arranging the valve 11, and of the addition of thepet-cock J, is, that in case the pipe Hshould become clogged up, it canbe cleaned out without removing the glass tube L, by simply opening thepet-cock J and inserting a wire, which will pass straight into the pipeH and clean the same. The valveboX may be provided with a simplethree-way cock, I, as shown in Figs. 6 and 7, the box having an outletor pet-cock, s, on a line with the pipe, and a passage, t, tocommunicate with the glass tube. This will answer the same purpose asthe tWochambered valve-box, with pet-cock and globe-valve, abovedescribed.

In Fig. 1 of the drawing I have shown, at the upper part of thereservoir, the two-chambered valve-box, pet-cock, and globe-valveconnected to the pipe H. When these devices are employed, they are to beused upon the pipe H at the bottom of the reservoir, also.

In Fig. l, at the lower part of the reservoir, I have shown a three-waycock in the valvechamber 1, with an outlet, 8', and pet-cock J. Whenthis liquid'controllin g device is employed, it is used upon the pipe1:1 at the top of the reservoir, also. The pet-cock J is not reallynecessary when the three-way cock is used. The two forms are shown inone figure for convenience in illustrating.

The employment of either the two-chambered box and globe valve or thethree-way cock will answer equally well to accomplish what I desire inconnection with the parts specified.

I do not wish to be understood as herein specifically claiming either ofsaid devices, nor

is closed and the valve 0 is opened, when the oil will pass directlyfrom the bottom of the oil-reservoir, and, by setting said valve 0 ac-'cording to the graduations on its hand-wheel; the number of drops to befed per minute is easily regulated.

On the rim of the graduating-wheel of the valve 0 is a stud, w, toconnect with a rod leading to the cab of the locomotive, so as to openthe valve when running down grade, as then the steam-is shut off.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The combination of the globe B, the graduated hand-wheel, thevalve-stem, and the globe-valve O, with teat a, having bevel at, all

substantially as and for the purposes herein set forth.

2. The combination, with the chamber I), having valve-seat I), of thevalve-stem h, disk 7c, circumferential groove 2, valve 2', and packingm, as and for the purposes set forth.

3. In combination with the screw-sleeve h, "alve-stem h, disk 70, andvalve 1', the lockin g hand-lever G, with nut, all substantially as andfor the purposes hereinv set forth.

In testimony that I claim the foregoing I have hereunto set my hand this8th day of September, 1874.

LEVI F. SMITH. Witnesses:

H. A. HALL, C. L. EVERT.

